Consolidated Statements of Equity - USD ($) $ in Millions		Total	Additional Paid-in Capital	Accumulated (Deficit) Earnings	Accumulated Other Comprehensive (Loss) Income	Equity Attributable to Common Stock	Equity Attributable to Noncontrolling Interests
Beginning balance at Dec. 31, 2016		$ (557)	$ 4,861	$ (5,404)	$ (14)	$ (557)
Increase (decrease) in Equity
Net (loss) income		(262)		(266)		(266)	$ 4
Contribution from noncontrolling interest holders, net		98					98
Distributions paid to noncontrolling interest holders		(8)					(8)
Other comprehensive income (loss)		(9)			(9)	(9)
Share-based compensation, net		18	18			18
Ending balance at Dec. 31, 2017		(720)	4,879	(5,670)	(23)	(814)	94
Increase (decrease) in Equity
Net (loss) income		330		328		328	2
Contribution from noncontrolling interest holders, net		82					82
Distributions paid to noncontrolling interest holders		(64)					(64)
Issuance of common stock	[1]	101	101			101
Other comprehensive income (loss)		17			17	17
Share-based compensation, net		7	7			7
Ending balance at Dec. 31, 2018		(247)	4,987	(5,342)	(6)	(361)	114
Increase (decrease) in Equity
Net (loss) income		(18)		(28)		(28)	10
Contribution from noncontrolling interest holders, net		49					49
Distributions paid to noncontrolling interest holders		(80)					(80)
Other comprehensive income (loss)		(17)			(17)	(17)
Warrant		3	3			3
Share-based compensation, net		14	14			14
Ending balance at Dec. 31, 2019		$ (296)	$ 5,004	$ (5,370)	$ (23)	$ (389)	$ 93

[1] Includes 2.85 million shares of common stock (valued at $51 million at issuance) issued to Chevron in connection with our acquisition of Chevron's working interest in the Elk Hills unit and 2.3 million shares of common stock (valued at $50 million at issuance) issued to an Ares-led investor group. See Part II, Item 8 – Financial Statements and Supplementary Data, Note 4 Acquisitions and Divestitures and Part II, Item 8 – Financial Statements and Supplementary Data, Note 5 Joint Ventures for more information.